The plan of attack calls for continued defense of structures along the north and south of Highway 120 as well as large burn-out operations along the southeastern edge of the fire in Yosemite National Park. The Highway 108 corridor is also receiving fire protection attention.

Earier thursday, USFS said 4,500 structures remain threatened. Three commercial properties and 85 tent cabins were destroyed at a camp run by the city of Berkeley earier this week, adding to the 23 structures that were previously reported as destroyed.

Officials said four injuries have been reported; the extent of those injuries is unclear.

Some 4,927 fire personnel are battling the blaze. Ground crews are getting air support from heavy air tankers including the VLAT DC-10 and MAFFS. On the ground, dozers are being used to clear fire breaks.